Explore Scientific 2", 68° 28mm Argon filled eyepiece (44781)

This 68° eyepiece is designed for exceptional performance and durability. It is waterproof and filled with inert gas, effectively preventing internal fogging, dust infiltration, moisture ingress, and fungal growth. The high-quality multi-coating is well-protected, ensuring long-lasting performance. Cleaning is also simplified, as the eyepiece can safely be treated with cleaning fluids, and even heavy condensation cannot penetrate between the lens elements. This ensures years of reliable use and enjoyable observation.

The eyepiece delivers uncompromising image quality, offering sharp, high-contrast views across the entire field of view, even with fast telescopes. High-quality glass materials, blackened lens edges, and the patented EMD multi-coating work together to maximize contrast and clarity.

Additional Features:

• Foldable rubber eyecup for comfortable viewing

• Standard filter thread for compatibility with accessories

• Conical locking groove in the stainless-steel barrel for secure attachment

• Parfocal design across the 68° series, eliminating the need for refocusing when switching between eyepieces

Specifications

Capacity

• Focal length (mm): 28

• Apparent field of view (°): 68

• Number of lenses: 6

• Connection (to the telescope): 2"

• Coating of optical system: EMD multi-coating

• Number of groups: 4

• Eye relief (mm): 22

Special Features

• Homofocal: Yes

• Adjustable eyepiece cup: Yes (folding)

• Filter thread: Yes

• Water-proof: Yes

• Inert gas charge: Yes (Argon)

General Information

• Series: 68°

• Weight (g): 515

• Diameter (mm): 69

• Length (mm): 94

• Type: Eyepiece

• Type of build: SWA